i want to swap out my stock dx cam for a 88-91 si/ex cam but i was wondering if the stock valvetrain can handle the cam and higher revs?
thanks

 

i read some post of bauleycivic's awhile back where the valves start to float on that head around 7600 so looks like your good to go up to 7200

 

Yea, you may want to redo that valvetrain before you start putting your rev's up that high.

 

well 7200 isnt that high. it is the stock redline on the d16a6 motor. i just want to get the most out of the cam without hurting the motor. anyone else with any experience?

 

bump

 

AFAIK the heads are teh same sans cam, and obviously the OBD differences. From what i remember, the replacement part #'s are teh same for the valve train, so it should work w/o any issues....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rextec &raquo;</TD></TR><TR><TD CLASS="quote">well 7200 isnt that high. it is the stock redline on the d16a6 motor. i just want to get the most out of the cam without hurting the motor. anyone else with any experience?</TD></TR></TABLE>

the d16a6 redlines at 6500

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboEM1 &raquo;</TD></TR><TR><TD CLASS="quote">

the d16a6 redlines at 6500</TD></TR></TABLE>

uh oh - it's ON now ... just watch

 

D16a6 redlines at 7100rpms
DX D15b7 at 6800rpms

 

i could of sworn that i heard the valves start floating at 6600 rpm or somewhere around that on a d15b7.and for soem reason redline on the tach for the dx is 6500rpm i belive but fuel cut off is at 6800

 

I past 6500rpms many times. I think the rev limit is 6800rpms
check out this link
http://tech.hybridgarage.com/tech/specs.htm

 

D15B7 redline is 6400 RPM, fuel cut is 6800.

I'm pretty sure the A6 cam doesn't make power any higher than 6500...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MagnaniEG6 &raquo;</TD></TR><TR><TD CLASS="quote">D16a6 redlines at 7100rpms</TD></TR></TABLE>

Are you sure? My other car is a 91 CRX Si with a D16A6 stock and the redline is 6500? Is it different for different years? Are you telling me i can safely take it to 7100rpms?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboEM1 &raquo;</TD></TR><TR><TD CLASS="quote">

Are you sure? My other car is a 91 CRX Si with a D16A6 stock and the redline is 6500? Is it different for different years? Are you telling me i can safely take it to 7100rpms?
</TD></TR></TABLE>

Many people in the EF forum swear fuel cut is at 7415rpm -

 

ttt

 

Ummm, just shift at 6500, I'm pretty sure Honda made it like that for a reason...

 

Everyones tach is lying to them.
B7 stops at 6500.
After Mid 92ish or 93 B7's started to use A6 valve springs.
You have no need to rev beyond 7k, if that MUCH.

 

If you dont have supporting mods to rev past the stock fuel cutoff and/or redline it is pointless, your car wont make any more power and you risk blowing your **** up

 

I take my b7 with a6 cam up to 6800 all the time......when I ran a p28 for a while it seen a 7200 a couple times no problems I wouldnt recommend it all the time though.